Fix warnings, simplify ADM.

webrtc/api/test/fakeaudiocapturemodule.h

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 161 matching lines @@
 
   int32_t ResetAudioDevice() override;
   int32_t SetLoudspeakerStatus(bool enable) override;
   int32_t GetLoudspeakerStatus(bool* enabled) const override;
   bool BuiltInAECIsAvailable() const override { return false; }
   int32_t EnableBuiltInAEC(bool enable) override { return -1; }
   bool BuiltInAGCIsAvailable() const override { return false; }
   int32_t EnableBuiltInAGC(bool enable) override { return -1; }
   bool BuiltInNSIsAvailable() const override { return false; }
   int32_t EnableBuiltInNS(bool enable) override { return -1; }
+#if defined(WEBRTC_IOS)
+  int GetPlayoutAudioParameters(
+      webrtc::AudioParameters* params) const override {
+    return -1;
+  }
+  int GetRecordAudioParameters(webrtc::AudioParameters* params) const override {
+    return -1;
+  }
+#endif  // WEBRTC_IOS
+
   // End of functions inherited from webrtc::AudioDeviceModule.
 
   // The following function is inherited from rtc::MessageHandler.
   void OnMessage(rtc::Message* msg) override;
 
  protected:
   // The constructor is protected because the class needs to be created as a
   // reference counted object (for memory managment reasons). It could be
   // exposed in which case the burden of proper instantiation would be put on
   // the creator of a FakeAudioCaptureModule instance. To create an instance of
@@ skipping 70 matching lines @@
 
   // Protects variables that are accessed from process_thread_ and
   // the main thread.
   rtc::CriticalSection crit_;
   // Protects |audio_callback_| that is accessed from process_thread_ and
   // the main thread.
   rtc::CriticalSection crit_callback_;
 };
 
 #endif  // WEBRTC_API_TEST_FAKEAUDIOCAPTUREMODULE_H_